TY - JOUR
T1 - Mononuclear and binuclear complexes of platinum(0) containing (alkynyl)phenylsilanes
AU - Bennett, Martin A.
AU - Cobley, Christopher J.
AU - Hockless, David C.R.
AU - Klettke, Thomas
PY - 1999
Y1 - 1999
N2 - Reaction of bis(cycloocta-1,5-diene)platinum(0) with the (alkynyl)phenylsilanes Ph3SiC2But, Ph2Si(C2But)2 and PhSi(C2But)3 gives, respectively, [Pt(Ph3SiC2But)2] (1b), [Pt{Ph2Si(C2But)2}]2 (2b), and [Pt {PhSi(C2But)3}]2 (4b), which contain zerovalent platinum atoms coordinated by two alkyne units. Spectroscopic data indicate that (2b) and (4b) contain two PtC4 and two SiC4 tetrahedra joined at the corners. X-Ray crystallography shows that complex (4b) is isostructural and isomorphous with the known nickel analogue, two of the alkyne units being uncoordinated; the central eight-membered ring comprising two silicon, four alkyne carbon and two platinum atoms has an approximate chair conformation. In contrast, the monomer (1b) is isostructural but not isomorphous with the analogous nickel compound (1a); in the crystal there is evidence for a weak intramolecular phenyl-phenyl interaction.
AB - Reaction of bis(cycloocta-1,5-diene)platinum(0) with the (alkynyl)phenylsilanes Ph3SiC2But, Ph2Si(C2But)2 and PhSi(C2But)3 gives, respectively, [Pt(Ph3SiC2But)2] (1b), [Pt{Ph2Si(C2But)2}]2 (2b), and [Pt {PhSi(C2But)3}]2 (4b), which contain zerovalent platinum atoms coordinated by two alkyne units. Spectroscopic data indicate that (2b) and (4b) contain two PtC4 and two SiC4 tetrahedra joined at the corners. X-Ray crystallography shows that complex (4b) is isostructural and isomorphous with the known nickel analogue, two of the alkyne units being uncoordinated; the central eight-membered ring comprising two silicon, four alkyne carbon and two platinum atoms has an approximate chair conformation. In contrast, the monomer (1b) is isostructural but not isomorphous with the analogous nickel compound (1a); in the crystal there is evidence for a weak intramolecular phenyl-phenyl interaction.
UR - http://www.scopus.com/inward/record.url?scp=0008776760&partnerID=8YFLogxK
U2 - 10.1071/C98135
DO - 10.1071/C98135
M3 - Article
SN - 0004-9425
VL - 52
SP - 51
EP - 56
JO - Australian Journal of Chemistry
JF - Australian Journal of Chemistry
IS - 1
ER -